Bicycle frame



FIG. 1 is an overhead view of the bicycle frame.

FIG. 2 is a bottom view of the bicycle frame.

FIG. 3 is an angled view of the bicycle frame from the left side.

FIG. 4 is a left side view of the bicycle frame.

FIG. 5 is a right side view of the bicycle frame.

FIG. 6 is a front view of the bicycle frame; and,

FIG. 7 is a rear view of the bicycle frame.

The application is directed to a design for a bicycle frame. For ease inunderstanding the invention, the views of the upper and lower frontframe members have not been shown in FIG. 7.

The ornamental design for a bicycle frame, as shown and described.